Bird Technologies 8890-400 Series - Manuale (Pagina 35)

Disassembly
To change the load resistor assembly:
1. Place the unit on its back end, connector up,
and loosen the 10-32 x 1-1/2 inch screw on the
clamping band.
+
Note: When lifting the radiator front, be care-
ful to keep its top side always face up. The vent
hole at the radiator top is so placed that, when
the equipment is up-ended in this manner, the
coolant level will be just below the vent hole
and will not spill out.
2. Remove the clamping band, and lift the load
resistor assembly out of the tank, allow coolant
to drip back into the tank.
This unit is not subject to further disassembly by field main-
tenance, and a defective unit should be replaced in its en-
tirety. Before replacing a load resistor, be sure that the
O-Ring seal is in good condition. It should be free of surface
cracks and of twists and be positioned evenly all around the
beveled flange of the resistor housing. If it is not, replace it.
Assembly
To assemble the load after replacing the resistor or the cool-
ant reverse the above procedure.
25
Maintenance
Figure 9
Meter Lead
Placement